Originally Posted by
onespeedbiker
If you stay with would loose ball BB, expect you will need to do regular maintenance, involving removing the crank arms, unscrewing the left side cup, cleaning out the old grease, putting in new grease and putting it all together again. If you not the type to do such maintenance or don't want to pay your local bike shop to do it, go for a cartridge type; it will save you headaches down the road.
IME loose ball BBs are pretty much set-and-forget too. Sure, you can worry about changing the grease every now and then if you like, but there's no need unless it's gone caramel... a properly set up loose BB will run just fine for years with no attention.